1Department of Botany, Govt. P.G. College, Noida, Uttar Pradesh, India, 201303
2Department of Botany, University of Delhi, Delhi, India, 110007, India
Department of Botany, M.M.H. College, Ghaziabad, Uttar Pradesh, India-201001
*Present address: Regional Higher Education Officer, Bareilly, Uttar Pradesh, India 243005.
**Corresponding author: E-mail: drkumarashwani.goyal@gmail.com
Online published on 20 October, 2014.
Global climate change components such as carbon dioxide (CO2) concentration, temperature and ultraviolet-B (UV-B) radiation are continuously increasing. The objective of this study was to determine the effects of season-long exposures of supplemental UV-B. Effect of supplemental UV-B radiation on the flower and fruit formation in soybean was assessed. Supplemental UV-B radiation was given by halogen lamps. The study reveals that the number of flower was increased when plants were exposed to longer (2 and 3 hour) supplemental UV-B radiation in comparison to control. Pod formation was promoted at all supplemental UV-B radiation but it was observed maximum at shorter exposure (1 hour) of supplemental UV-B. At the maturity of the crop, the pod formation was recorded highest at 1 hr than at 2 hr and 3 hr supplemental UV-B radiation when compared with control. Overall results indicated that supplemental UV-B radiation promoted the growth of flower and fruit in soybean (Glycine max L.) crop.
Glycine max L, supplemental UV-B radiation, flower and pod
